Heel-nailing machine.



G. M. ETTENG'ILL. HEBL NA-ILING MACHINE.l APPLICATION FILED JAN.Y16, 1911.

, 1,042,374l I Patented. oct. 22, 1912.

s SHBETS-SHBBT 2.-

Mines 52126,

G. M. PETTENGILL.. HEEL NAILNG MACHINE. APPLICATION FILED AN,16,1.911.'

Patented 001'.. 22, 1912.

`a SHEETS-SHEET a.l

Uli STAT s PATE GEORGE ivf. PETTENGILL, or HAVE'RHILL, MASSACHUSETTS, ASSIGNOE 'ro A'vERnILL sHoE MACHINERY COMPANY, A conrona'rrezi or MAINE.' y

` HEEL- NAILING MACHINE;

shown in myprior Patent #861,051, dated. .July 23,1907, in which a heel is pricked for l the next shoe difficulty has ,in the nail-receiver of -nails* to be discharged intl; the nail-plate beforethe first lot has been driven out. This Be it'knownthat I, GEORGE M. PErrEN- Gru., residin'gF-at Haverhill, in the lcountyb'i -Essex and-State'of Massachusetts, have 1n-v vented an? Improvement -in Heel-Nailing Machines, of vwhich the ollowingis a specif (t1/O,n .A l This invention relates to certain improve-- i ments in heel-nailing machines, and particularly heel-nailing machines -of the type has occurred` the following way. Inthe ordinary operation of themacli'ine, when the cross-head descendslto spank atoplift onto one heel and prick another heel held on a holder in thc'rear thereof, the heel which is is 'attached to the nail-plate, and as the crosshead is lifted the operatorpushes back the'fna-il-plate to the nail-receiving pof port of .the .nail-receiver, so that the nails which he -has.p'revifmsly placed in the receiver are' sition andthe assistant moves the nail-supalldgzved" to' fall into the nail-plate --and into .the'prick-holes of the heel tempo.

rar-ily attached to the under side thereof.

-The nailfplat is then moved forward to .operati-ion.

'nailing positiom-'bu't the operatorthen some- 1 times discovers that either the top-lift has not been. securely attached, or has not been :'ntta'chedat all in the previous spanking operation, so that it is necessary to repeat this Before he doesthis he must push the .nail-plate back to nail-receiving posiwhich hadpreviously V 'time' filled l.the nail-receiver, nail-loading means tion, this being necessary, for, if the nailplate `were' held inpricking position, the awls would Vbe forced down onto the nails nail-plate. der .these conditions, has failed to notice that the ,operator is merely repeating -a spanking having 1n the mean-K- operation, he is likely,

to operate the again, before .the plate forward forfthe next nailing eration, so that Specification Aof Letters Patent. i i' been .dumped into vthe .Ifthe operators assistant, unf

.Opp -a second loto'nails Wlll be 1 dischargedintgjthe 'nail-plate, Withthe rc-j PatentedOct. 22, v1912.* i applicati@ med January 16,1 911. seria1`No.eo2,7.61.`

sult that, ivhen theinail-plate isniov'ed fcrf Ward to nailing posi ion, and the nailing op.-

f'cration isperformed, vthe drivers .will be jammedcr broken and much ditiiculty and damage will be caused,"or is likely to' be caused, by reason have been placed in each nail hole.

The object of the' presentinvention is tol provlde means whereby, when one lot of of the fact that tivo. nailsv nailshas been discharged into the nail-plate it-vvill be impossibleor asecond lot of nails tobe delivered thereto, until the nailing-op.'- eration has been performed and the first lot Of'nails driven. into the hel"'f i In this connectionafurther object of my invention is 'to provide an improved' form of-.nail'loader'and simplify' the apparatus which controls the same. vFor an understanding of reference' is made` to drawing, in Which,

- Figure lmy -invention chine which directljcoperates lwith the iinprovenients forming-the :Subject-matter of this" application. Fig. 2 is asimilar view on an' enlarged scale, and-partly in section. Fig. 3 is a detail plan view'of the 'nail-plate and nail-loading mechanisinf- Fig l is a section onfline'a-a-of Fig. 3. Fig. :iis a side eleva-tion, similar to Fig. 2, showing theparts in a different position. Figs.' 6,47, 8 andv 9 are-cletailvi'eivs ofthe locking mechanism; Figs. G and 7. being sectional views on 'the line 6 5, of Fig. 5;"Fig. S-a sec-` tionalvjew on the line c-c Fig. 9 a sectional viewon tl Fig. 3. Fig. 10'is' an enlarged detail viewevice.

of a portion of the locking Fig.;11.l

is a front view of the nail-plate and, Fig. 12

is an end'vew of the nail-receiver.

In the drawing 1 indicates mounted to reciprocate verticallyonguide- Vthe accompanying;

of" Fig. G; and 1e line .eZ-Lof the bed of the machine 4over which4 the cross-head 2 is4 1 isa side"elevation,partlyin sec-' tion, of the portion of'aheel-nailin-"gmarods 3, the`cross-head lcarrying 'the .usual I .turret et having a driver-gangand a spankjack 7 is-'mounte'd on" the bed beneath the turret and a heelh'older: -8 is also mounted thereon,'in Athe rear thereing plate Gf thereon. 'IA

of,' and beneath thel aWl-carrier 9 mounted t0 move vertically `1n'the rea-rf otthejcrossjvhead.' 'A. air of upright'r'o'ds 10 'are mountedin the ed inthe rear ofthe cross-head andu'thelnail-receiver frame 11 -is mounted on the upper ends thereof, said Kframe havingV a rectangular: 'shapeddnafreceiver 12 lremovably supported by 'means of edge Hanges 1 20 in .a correspondingly shaped aperture 1n the frame, said receiver having ajbolt 121 passingthrough a lug 122 at the rear end thereof to clamp it to the frame.'

A nail-plate slide holder 13 is mounted in. vertical gnideways on the rear side of the.

cross-head, and has a Ahorizontal portion which is slidably mounted on the rods 10, beneath the frame 11, said horizontal portion having horizont-al guideways adapted to receive the nail-plate slide 14 bearing the usual nail-plate 140. Sleeves, as 15, are mounted to slide on the rods 10, beneath the holder 13, and springs, as 16, are so arranged on said rods beneath said sleeves that lthey may press against said sleeves, and normally act to support the lholder 12 and press it i against the underside' of frame 11. A shaft the same as that already shown and described in my pending application Serial .-A nail-support 22 is slidably mounted in the under side of the .receiver 12, by a tongue and grooveconnection, see Fig. 12, said receiver and support each being provided with nail-holes corresponding to the holes in the nail-plate 140. The extentof reciprocation i of the support 22 is sufficient to cause the nail-holes therein to be held in and Aout of register with the 'nail-holes' of the receiver, this movement being limited in each direction by means of a pin 23. mountedin the receiver 12, and entering a short slot 220 in the support 22. The receiver 12 is provided with an arm 221, which extends vertically in front of thesupport 22 and a spring 24 is arranged in a chamber 222 in the support 22 between said arm 221. and .the bottom of said chamber, so that said springk 24 is adapted, when unopposed, to move the sup ort 22 to its rearmost position, in which A the nail-holes in the receiver and the sup-l port`will be in alinemcnt. The nz'iil-receiver land its nail-support 22 are thus connected so that they may be readily removed and replaced together, by merely removing bolt 121, enabling changes4 from one form of nailing to another to be conveniently made.

The operating means for the nail-loading devices comprise a carrier 25 which is slidably' mounted inguideways the frame 11 a slot 251 formed insaid carrier. .tically disposed guide rod 31 is arranged to .reciprocate vertically in the depending por-` at one side of thenail-plate, said carrier having a finger 26 which is adapted to engage the lsupport 22 to push the same forward to itsnail-supporting position. arm'27, for operating the heel-gluing mech` anism,` is mounted on shaft.28 beneath -the slide,'said arm having as ring 29 connected thereto which is ofsu cient 'strength to carrier 25 in the forward position and' the support 22 inl nail-supporting position, as

shown in* Fig. 2, l thus overbalancing the spring 24. When the carrier v,25 is drawn back to its rearmostl position,l the spring 24 is then permitted to move backthesupport 22 to lthe position of Fig.' 9, so :that the nail-holes w1ll be held in almement with' -the -holes in the'receiver 12, andthe nails therein will .be discharged` into the nailplate. The length of this motion is much greaterthan would otherwise begnec'essary, on account of the'motion required to per- ,swingthe same forwardly and to hold the form the gluing operation on the heel, as

described 1n said prior application. '.That is,'if it werenot,l desired cooperate the heeligluing apparatus' .by the carrier 25, any 'suitable actuating means for holding the .carrier in the forward position, which was ofsnicient strength to overbalance the 'spring 24, and 'move the support 22 into nail-supporting position,y might be employed.

To prevent the ldischarge of a load of .nails from the receiver 12 into `the nailplate 140 -while another 'load of nails are.

still in the nail-plate, -I- provide suitableV means for locking the operating means for the nail dumping mechanism, i. e., the carrier 25, which may be described as follows :-As best shownin Figs: 6 to 10, the carrier 25 is provided Iwith a depending portion 250,'in the upper portion of which a dog 30 is mounted to move verticixlly in vertion 250 of the carrier, and is connected at its upper end -to said dog 30.

. A spring 32 is' arranged lin a pocket formed in the'l depending portion of the carrier, directly lbeneat-h the dog 30,- so that said spring may act to' lift the dog in .its guideways. 'The dog 30 is provided with two upwardly projecting lugs 3.00 and 301, on its upper side, the lug 300 having a series of rearwardly inclined teeth 302 on its 'upper end, see Fig. 10, to form a pawl.

plate 33 is mounted on the under side of' the frame 11, adjacent-,the guideway for the carrier 25, and directly above the position in which the lug or pia-vl 300 is held when the carrier is in its fiv'ard position. Said plate 33 is provided with rearwardly in` clined teeth 330 corresponding to the teeth 302, so that, when the pawl 300 is heldin engagement with thev eeth.330 by means ofv the spring 32,?the carrier may be movedforn-'ardlybut Will be prevented from being moved rearwardly. The rear end of the 5 plate -33 is also 'provided vit-h an inclined face 331 as shown." A locking pin 35 is reciproeally mounted in the carrier 25 directly above the lug 301, on the dog and at right. angles to the guide rod 31, the reciprocating movement of the pin being limited by means of-a pin 350.\vhieh is nfiou'nted therein-and engages a short slot 253, indicated in dotted lines in 'Figs S and 9,'-in-the earrierl 'A- notch 351 is formed in the. underside of pin 35,ad jacent its inner end and a spring. 3G is interposed between-the inner end of the pin 35 and the bottom of the recessin which the pin is located, and acts normally to hold the pin 35 in' its outer position, as shown in A stop-lug 37 is-mounted ontheframe 1.1 at the rearend of the guideway'for the carrier 25 and in line with the pin 3 5, so 25 that when the carrier'is moved to its rearmost positionf. thel`pin will' engage. sald stop-lug and will be "pushed back. A hori- -zontallyi projecting arm or lug 38 is provided on the lovver end of the guide -pin `31 i nail-plate 14 in position to engage said lug v38 when the nail plate is depressed, while in prieking posit-ion, but to be moved out of engaging position when the plate 1s A3'5fmoved .either to nailing or nail-receiving position. f l

i Asshown-in Figs. 9 and 11-the staple? lifting'lever 440, which is mounted onthe hinged 'and stripper 41, is extended beyond the front of the nail-plate, and al spr-ing 42 is interposed betweenthe end of said lever andthe nail-plate, so that said spring acts t0 draw upwardly the staple 43, which is driven into the/heel on the pricking operavtion." The tension of spring 42 is not sufii-' cient to withdraw the staple from the heel and is `only sutlicient to hold the tread face, of theheel-against the fac'e of t-he stripper, while the nail-plate slide is beingdrawn back to receive the nailsand is advanced to nailing position, preventing the baclg of the heel, I1 vsome instances, from striking the. heel'liolder and'gluing roll. The-operation is as follows: -1`)nr.1ng the operation of spanking on'the top-lift, the' heel is pricked and,'at the en d oft-his operation, the loekingpin 35 will be in its outermost .position in the; carrier, as shown in. Fig. S .-while the lug 301' \vill be held by the spring32 vaga inst. the -slde of the p1n 35 in front offandelosely adjacent they-notch 351-tliereinpas' also shown in Fig.l 8,.' n l which position the flug-300vill-beheld out of .engagement with the toot-hed plate elo ' the end -the support 2 2 is. again 'moved to nailsupj, porting positlon by a forward movement anda spring-finger 39 is mounted 'ori'the V position and t .move it to the position of Fig. 8.

e5 33, as show-nui'nFig. 7.; Afterthe'p'ricking operation is tinished,the nail-plate is pushed back to rail-receiving positlon'fas shown in Fig. 9, and the operatdrfs' assistant pulls back the carrier '2v' tofitsfullestA extent, permitting the spring 24 to'move thesupport Q2 toits'nail-discharging position, so that the nails are.'diseharged'into lthe .nail-plate 140 and ilhe heel-gluing operation is per-- formed. in t bef, iethe carrier'-25 reaches lof s reaiibard movem'ent1, the end` 55 of .the-pin 35 ,is ezirried into engagementll with the'stop pin 37 causing the'pin 35,* as the carrier finished its .rearward movement, to b e moved forward until its notch 351 is opposite the lug 301, permitting the A spring 3 2 to lift the dog 30, so that said lug passes into said notch, as' shoWnin Fig, 9. The earrienis thenm'oved. forward to its normal posit-ion, causing the inclined teeth of the lug 300 to' ride' over theteeth of 85 plate 33, until the carrier reaches itsfor-. ward position,- in which position it is locked against rearward movement by saidengag' ing teeth, as shown'in F igs'.4 10 and 6; As

ofthe carrier 25, it will not be possiblelto discharge nails i'nto the nail-plate'until tliecarrier is unl cked. In the'fur` dren operation of the machine,- 95 the nail-pla@ is\pushed forward to the heeling positionv'fitertlielnailshave been discharged therinillind then the heel-is nailed. Then theslite isipushedback to pri'cl'cing iefnext heelis pricked and 10u the top lift isV simultaneously spanked. on

the heel which lias jus been nailed; As the nailplate is moved donnwardlv on the downward motion of the cross-head to perlA form the pricking operation, the finger 39,1105 onfthe slide 14 .engages the finger 38 oni pin 31 and -draws (lo\\'n\\'ard the pin 31 and dog 30, moving lug 300 out of engagement lwith teeth 330 on plate 33, withdrawing the: lug 301"'from notch 351. and releas- 11.0-

ing the pin 35', so'thatA its spring 3G may A The carrier 25 is thus 11n-locked. so that when the slide 14 is pushed' back to nail-receiving positionand vthe operation of dumping the v`1`15 nails is .to le repeated, which operation immediately follows the"pricking operation. the carrier."25 may be moved to. perform this operation.

lf, how ver,A the nail-.plate slide should be moved b cinto the nail-receiving position a second tim f'or'e the heehug operation has been )erfo'rhedand the next heel has been pri'eked and the operators assistant attempts-T'to'lmov'e back the carrier. he will 125 findthat -it i s locked, sothat he will4 be pre-4 vented froi'lf'dis'eharging asecond load of nails into'the nail-'plate before the firstload 5 has been discharged therefron1. For eX-Zj formed a' prick'ing Vand spanking operation.

and having'pushed the iiail-plate back to nail-receiving position, so that the assistant discharges a'load of nails in the' nail-plate and then pushes the plate forward, should discover that the spanking voperation must'.

be repeated, he'mustthenpush the plate back again to nail-receiving position before he can repeat this operation. It the assistant, however, thinking that the lie'eling op `eration has been performed, attempted to discharge a load of nails into the nailplate, he would find .that the operating meansfor doing this, the carrier 25, was' locked. It will be observed that downward movement of the'cross-'head and consequent downward movement, of the nail-plate in any position but the pricking position will not unlock the carrier 25.

`1. In combination with- .av heelfnailing machine having operating mechanism, movable to perform the heeling operation, and

including a nail-plate and a .loading-device movable to deliver a load of Anails to said plate, means for automatically7V locking said loading-device against operative. movement when it has been moved to perform its naildelivering operation, and means, actuatedon operative movement of said operating mechanism, for automatically unlocking,saidloading-device.

'heeling operation, and 4including a movable -i`iail="plate and a loading-device movable to` if'lfdeliver-a load of nails to 'said`plate, means A for automatically locking saidloading-device against operative movement when `-it has been moved to perform its nail-delivering operation, and means, actuated by said operating mechanism y in a predetermined position 4of the nail-plate, foi automatically unlocking said loading-device.

4. In aheel-nailiiig machine having operating mechanism, movable successively to perform the heel pricking and nailing op-l eratioiis ,f a nail-plate movable to corresponding posit-ions during said operations, a loading-device movable .to delivegaloado'fiiails to saidplate after each prickiiig operatioinw eratiig",

means for automaticallyc'locking .said load`1 ing-device when it has been moved to perform its nail-deliveringoperation,- and means, actuated-by said operating mechaiiism on each pricking operation, for automatically unlocking said loading-device.

5. In a heel-nailing machine having op' erating4 mechanism, movable successively to perform the lieel-pricking and nailing operations, a nail-plate movable between nailreceiving, heel-prieking and heel-nailing positions,. a loading-device for delivering a A load of nails to said plate when in nail-receiving position, means for automatically locking said loading-device at the end of each operative movement thereof, and means for automatically unlocking said loadingdevice disposed to be actuated by said operating mechanism only when the nail-plate is in pricking position.

6. In a-heel-nailing machine vertically movable nail-plate,. horizontally movable between nail-receiving and heeling positions, a loading-device movable to deliver a load of nails to said plate when in nail-receiving position, a locking-device automatically movable to lock said loading-device at the end of each delivering operation, and

means, disposed to. be automatically act-u ated'on vertical movement of the nail-plate, when in a predetermined position other than the nail-receiving position, for moving said lockiiig'fdevice to unlocked position.

7. In a heel-nailing machine a verticallyl movable nail 4- plate, horizontally movable between nail-receiving and hceling positions, a loading-device movable to deliver' a load of nails to said plate when in nail-receiving position, an operating-device for said loading-device a lockin0device automaticallv movable to lock said operating-device at the end of each' operative movement thereof, and means disposed to be .actuated by the nail-plate, on vertical movement 'thereof when in a predeterminedposition other than the nail-receiving position, to move said' locking-device to unlocked position.

8. Ina heel-nailing machine a vertically movable nail-plate, horizontally movable between nail-receiving and heeling positions, a

loading-device, movable to delivera loadof nails to said platewhen in nail-receiving position, a locking-device for said loadiIig-device automatically -movable to lockingv posi tion at the end of each operative' movement of said-loadng-devioe, and engaging meansA carried by said 'nail-plate arranged to engage said locking-device, to move the same to unlocked positiomf on vertical movement of the 'plate when in a predetermined posi tion other than the nail-receiving position,

'xd to be carried out of engaging position on movement of the plate to nail-receiving -positioin ,Qn-InfLQl 'lreel-nailing machine having opnormally inovable to perform the heeling-operations in a prede'- termined cycle, .and including anailplate;

a 4loading=de-vice movable 'todeliver a load of vnails to saidplate, an operating-device'l recipro'cally movable tocontrol lsaid loadingdevice, a' locking-device carried'sby said. operatin'gd'eviee, means. for moving said locking-device' tof-operative positionat the end l 'fof each eciprocation thereof, and means vfor =ating'mechanism at a predeterminedY point "in the-cycleof'itsfoperations.l

automatically moving said locking-device to an inoperative position actuated by said op ,erating mechanism lat a predetermined point in the cycle of its operations.

I 10.3In va heel-nailing'machine1 havingj op-4 erating mechanism,normally movable in a predetermined cycle to perform .the heeling-.l

operation, and'including a nail-plate, a. nail- Areceiver ada ted .to dischargenails into said plate, a lnai l-support ,beneath 'said receiver,V

means fr reciprocating fsaid rsupport t`o`dis, Y "charge the nails from said .receiver, means thereof, `andmeans for automatically fun'.- locking-.said support-actuated by saidoper- .-'1 1l 'Ina heeli ailing machine having-op- -erating' mechanism, Anormally -movable in a predetermined cycle4 to perform the heeling- .xop'eration'and including -a nail-plate, a nailloading device for said plate, 'La' controllingdevicevv f for said 'loadi'n device for 'said I controllingedevice ormally actuated tomove to .locking position, means'. v.for holding.- said; lookin -device in an inopff .-erative position, means or automatically re;

device vfor said loading-device,- a locking-.de-

vice for said controllingLdevice normally ac-. tuatedjto rnovelo locking position, a holdving-device'rmrr-nally"actuatedY to. lock said locking-'device in an inoperative position Aso at' a predeter pperations..

against" the actuation-"thereof, means for -movingsaid holding-device to release said locking -device on operative movement of said controlling-device, and means l.for mov-- vingsaid locking-device toits inoperative po- 'p sit1`on actuated byfsaid operating mechanism v ined point in the cycle of-its- `-..13. a heel-:nailing machine havingv 013-.

rfi

etereciprocation device, a locking! eratin-gniechanism, normally movable'in a predeterminedglcycle to perform the' 'heelingoperation and f including a nail-platea nails .ldevice for saiQ permit theo device carriedfby said controlling-'device alid normallyactuated to-'lock ,the sameagai t operative movement, a .holdingd'evice a carried by said controlling-.devlce and.v noi:

in,'an' inoperative position, means for 'engag-4 jan .inoperativev position o nfjoperative move'- .ment of said' controlling-device, and means tiveposition actuated by said operating mechanism at' a predetermined point in the cycle'jofits operations.

into and out of-nailfreceiving position, asta'- -said nail-plate, a nail-support for 'controla controlling-device ,movable tol permit the .'mally actuated tolock thesameyfromfopera- .iiv'e movement," .a oldin .fdevioe, normally actuated to hold. said r'loc gfdevice in. in operative position, meansA4 frmoving said said.lockingdeviceffand movel the same to l receijvingposition.

Qf n ailghales- 'and mounted-0 1; the-un-er side of said recelver-.tofmove bet-Ween nali-supporting andk discharging pos1t1ons,.a.spr1ng ably [mounted ton 'said' frame? and 'spring a-c tuated to. engage 'said support to1 move the same, against the'action of the. spring there.- of,'from discharging to supportingposition,l

name to this specification,I in? the 'twopsubscribing Wltnesses .G Eonenn PETTNGiLI; .Witnesses v LSH. HanRrM'AN, i Bc Davis.

loading v'devicefiorj'said plate,l a. controlling` d,l loading-device, movable to.

ytion of the'same, a locking-l -tionary nail-.receiver for delivering nails to" operation oi?` said support, a'jl'ockingfdevi' 'carried by said controlling-device andnor-4 In .testimony whereof, 'Ifhave' signed my presence of.

mallyl-ac'tuated to lock said locking-device" ing' said holding-device tomove 'the sametol for' .moving said lockin-gdevice-to inopera-v y ling'the delivery ofnails from said receiver, f

h'oldingdevice to inoperative position onop? erative movement' of. said.- controlling-device, .and/anV abutmentlicarriedby said nail-plate" :disposed to. beheld i111 'position .to engage".

inoperative position on verticalmovement ioflthe nailsplatewllenout of nail-receiving; position' and-to' `be carried out `of engaging .position oil-.movement of said plate. to nail-l 105b 1'5i Ina heelLnalling machine, a'frame, a -'nail -receiver removably. mounted in s aidf actuated to. move'said. support into discharging position',` ,and a lcontrollingdevic'e m'ovd I A'115 

